18024400

素因数分解:

$2^4\times 5^2\times {\mathrm{45061}}^1$

素因数の和:45079

約数の個数: 30

約数和(自身を含む): 43304582

約数和(自身を除く): 25280182

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 45061, 90122, 180244, 225305, 360488, 450610, 720976, 901220, 1126525, 1802440, 2253050, 3604880, 4506100, 9012200, 18024400]

約数ペア:

[(1, 18024400), (2, 9012200), (4, 4506100), (5, 3604880), (8, 2253050), (10, 1802440), (16, 1126525), (20, 901220), (25, 720976), (40, 450610), (50, 360488), (80, 225305), (100, 180244), (200, 90122), (400, 45061)]